Mason Bottle Breastmilk Storage Jar Set (Glass Jars + Storage Lids)

Important note on baby bottles and milk storage

When I’m choosing breast milk storage containers, I think about how often they're used and what they're used with. Milk is warm, fatty, and usually stored for later — and that’s precisely why I pay attention to materials. I prefer storage options that feel stable, are easy to clean, and are simple enough that I’m not guessing what’s touching the milk.

What I avoid in baby bottles and milk storage

In this category, I avoid PVC and PUR, as well as BPA and BPS. I also try to avoid overly plastic-heavy systems for warm milk and formula, and I’m mindful of decorative paints, inks, and coatings when it comes to anything used daily. I prefer clear material disclosure and a straightforward design.

Product description

The Mason Bottle Breastmilk Storage Jar Set is a glass-based storage system designed for pumping routines and milk storage. The jars are intended for fridge and freezer storage, and the set includes storage lids and a silicone sealing piece to help create a more secure seal. The wide-mouth, straight-sided jar shape is designed to make filling, pouring, and cleaning easier, which I know matters when you’re in the thick of pumping life.

I also like the idea of building your routine around glass storage first — then adding compatible feeding pieces later if you want to — instead of juggling separate plastic storage bottles.

Materials

Glass jars
Plastic storage lids
Silicone sealing components (used for storage/freezer sealing)

What I like

I like that the main storage container is glass and that the system is designed specifically for breast milk storage. The wide-mouth jar style is practical for everyday use, and the silicone sealing piece is a nice touch for anyone freezing milk and looking for a more secure storage setup. I also appreciate when brands clearly state what their storage components are made from and which materials they avoid.

Things to keep in mind

The lids are plastic and the seals are silicone, so I’m gentle with the lid pieces over time. Even if parts are labeled dishwasher-safe, I typically hand-wash plastic components used for milk storage to be a little gentler with them.